[alsa-devel] What exactly is module snd-hdsnd-hda-intel

[Nigel Henry]

I see someone that had sounds working on a Thinkpad T61, but sounds have 
recently stopped working. The module snd-hdsnd-hda-intel is listed on his 
lsmod output as below. I've never seen such a module before. Any info on what 
this module is?

lsmod | grep snd_hda_intel returns:

snd_hdsnd_hda_intel         324248  2
snd_pcm                62596  2 snd_pcm_oss,snd_hda_intel
snd                    45604  12
snd_pcm_oss,snd_mixer_oss,snd_hda_intel,snd_pcm,snd_seq_oss,snd_seq,snd_timer,snd_seq_device
snd_page_alloc          7816  2 snd_hda_intel,snd_pcm
a_intel         324248  2
snd_pcm                62596  2 snd_pcm_oss,snd_hda_intel
snd                    45604  12
snd_pcm_oss,snd_mixer_oss,snd_hda_intel,snd_pcm,snd_seq_oss,snd_seq,snd_timer,snd_seq_device
snd_page_alloc          7816  2 snd_hda_intel,snd_pcm


This is on a Debian Lenny install, using kernel 2.6.26-1-686, and alsa driver 
version 1.0.16. Codec is AD1984.

His soundcard is detected ok, as below.

$ cat /proc/asound/cards
0 [Intel          ]: HDA-Intel - HDA Intel
                     HDA Intel at 0xfe020000 irq 17

This is only out of academic interest, but as modinfo shows no such module, 
I'm really puzzled how a non existing module can be loaded.

Nigel.